EN 
ES
PT
SV
DE
TR
FR
RU
VN
ID
UZ
MX
IN
DN/De/D / Φ / PN/phapang pakeng tsa SDRS
D: Ka kakaretso e bolela bophara ba kahare ba phaephe, bophara ba selikalikoe se ka hare sa lebota la phaephe.
DN: e bolela bophara bo tloaelehileng, bo tsejoang hape e le bophara bo tloaelehileng ba kantle, boo e seng bophara ba kantle kapa bophara ba kahare ba phaephe, empa e le karolelano ea bophara ba kantle le bophara ba kahare. Ena ke letoto la liphaephe le lisebelisoa tse tloaelehileng tsa bophara. Tšebeliso ea bophara bo tloaelehileng e molemo ho phethahatsa maemo a likarolo, 'me e loketse moralo, tlhahiso, tokiso le tsamaiso, 'me e fokotsa litšenyehelo tsa tlhahiso. Bakeng sa liphaephe, DN ke setšoantšo sa boholo bo ka tlase ho bophara ba kantle le bo boholo ho feta bophara ba kahare. E tsamaellana le bophara bo tloaelehileng ba phaephe, bophara ba eona ba kantle ke boleng bo tsitsitseng, 'me bophara ba kahare bo fapana ho latela botenya ba lebota.
φ: e bolela bophara ba kantle ba phaephe, ke hore, bophara ba kantle ba phaephe ho kenyeletsoa le botenya ba lebota la phaephe. Phaephe e akaretsang ya tshepe e se nang moedi, phaephe ya tshepe e spiral e sebediswa ho tshwaya boholo ba φ, e tshwailweng ka sebopeho sa bophara ba kantle ba X botenya ba lebota. Mohlala, φ 108 x 4 e bontsha phaephe e nang le bophara ba kantle ba 108mm le botenya ba lebota ba 4mm.
De: e bolela bophara ba kantle ba liphaephe. Bophara ba kantle ba liphaephe tsa PPR, PE le POLYPROPYLENE hangata bo tšoauoa ka De, hangata bo tšoauoa ka mokhoa oa bophara ba kantle ba X botenya ba lebota. Tse kang: De110 x 6.6.
Kamano pakeng tsa DN, De le φ:
De e lekanya bophara ba lebota le ka ntle la phaephe; DN ke De ho tlosa halofo ea botenya ba lebota la phaephe; φ e bontša bophara ba selikalikoe se tloaelehileng.
De, DN, D, phi boholo ba tsona bo fapaneng:
De- PPR, peipi ea PE, bophara ba phala ea polypropylene;
DN– bophara bo tloaelehileng ba phaephe ea polyethylene (PVC), phaephe ea tšepe e lahliloeng, phaephe ea tšepe e kopantsoeng ea polasetiki le tšepe, phaephe ea tšepe e galvanized;
D — Bophara ba palo ea phaephe ea konkreite;
ф– Phaephe ea tšepe e se nang sekoli kapa phaephe ea tšepe e se nang tšepe e lokela ho ngoloa “bophara ba kantle × botenya ba lebota”.
PN: e bolela kgatello e tloaelehileng, e sebediswang ho hlalosa kgatello ya diphaephe, di-fitting tsa diphaephe, di-valve le disebediswa tse ding tsa khetla. Nomoro e latelwang ke tlhaku PN ha e emele boleng bo lekantsweng. Mohlala, bakeng sa phaephe ya phepelo ya metsi ya PE ya PN1.0mpa, 1.0 e emela boemo ba kgatello. Kgatello e tloaelehileng e bolela kgatello e sebetsang ya phetiso ya metsi ya phaephe mochesong wa bobedi (20℃), ke hore, kgatello e phahameng ka ho fetisisa e sebetsang e sebetsang leboteng le ka hare la phaephe tlasa boemo bo tlwaelehileng ba ho sebetsa. Hona jwale phaephe ya phepelo ya metsi ya PE e sebediswang hangata e arotsoe ka dihlopha tse hlano tsa kgatello.
SDR: e bolela karolelano ea boholo bo tloaelehileng kapa karolelano ea boholo bo tloaelehileng ba liphaephe. SDR e phaepheng ea phepelo ea PE e bolela karolelano e pakeng tsa bophara ba ka ntle ba de le botenya ba lebota bo tloaelehileng ba EN ba phaephe, ke hore SDR=de/en. Ke paramethara ea bohlokoa ho laola botenya ba lebota la phaephe le ho fumana bokhoni ba ho jara khatello ea ka hare. Mohlala, e tšoailoeng phaepheng ea PE: SDR26 PN0.6mpa, SDR21 PN0.8mpa, SDR17 PN1.0mpa, SDR13.6PN1.25mpa, SDR11 PN1.6mpa, jj.
Phaephe ea polasetiki ke resin ea maiketsetso hammoho le lintho tse eketsoang ka ho qhibilihisa lihlahisoa tsa ho lokisa foromo. Lintho tse eketsoang li kenyelletsa plasticizer, stabilizer, filler, lubricant, colorant, ultraviolet anyesang, modifier, jj.
E sebelisoa hangatalipeipi tsa polasetikike: phaephe e thata ea polyvinyl chloride (PVC-U), phaephe ea polyethylene e nang le density e phahameng (PE-HD), phaephe ea polyethylene e hokahaneng ka sefapano (PE-X), phaephe ea polypropylene ea random copolymer (PP-R), phaephe ea polybutene (PB), polasetiki ea boenjiniere propylene qing-butadiene-styrene copolymer (ABS) jj. Sebopeho sa thepa ea phaephe ea polasetiki se khetholla litšobotsi tsa phaephe ea polasetiki.
1) Melemo e meholo ea phaephe ea polasetiki
• Ho ba le botsitso bo botle ba lik'hemik'hale, ha ho angoe ke mabaka a tikoloho le likarolo tse mahareng ka har'a phaephe, ho hanyetsa mafome hantle.
• Phepelo e nyane ea mocheso, phepelo e tlase ea mocheso, ho thibela mocheso, phello e ntle ea ho boloka matla.
• Tshebetso ya haeteroliki e ntle, lebota le ka hare la phaephe le boreleli, coefficient ya khanyetso e nyane, ha ho bonolo ho e lekanya, sebaka sa phallo phaepheng ha se fetohe ha nako e ntse e ya, mme monyetla wa ho thibela phaephe o monyane.
• Ha e bapisoa le phaephe ea tšepe, e na le boima bo tlase, thepa e bobebe, lipalangoang le ho e kenya habonolo, 'me tlhokomelo e bonolo.
• Tshebetso ya tlhaho ya ho kobeha kapa ho kobeha ka serame, phepelo ya dikhoele e ka sebediswa ho fokotsa palo ya manonyeletso a diphaephe.
2) Tšusumetso ea ts'ebetso ea liphaephe tsa polasetiki
• Pvc-u, PP le ABS li na le thepa e phahameng ea mechini 'me li nkoa e le "lipeipi tse thata" tse nang le ho kenngoa ho betere ho bulehileng. Ho fapana le hoo, PE, PE-X, PB e le "peipi e tenyetsehang" e loketseng ho penta ka lefifi.
• Mocheso le khanyetso ea mocheso ea phaephe ea polasetiki li etsa qeto ea hore PVC-U, PE, ABS li ka sebelisoa feela bakeng sa phaephe ea metsi a batang, ha PE-X, PP, PB li ka sebelisoa e le phaephe ea metsi a chesang. Ha moaho o na le sistimi ea phepelo ea metsi a chesang le tšebeliso ea khanyetso ea mocheso ea phaephe e chesang le e batang e tšoanang e ba letšoao le ka sehloohong.
• Phaephe ea polasetiki ka lebaka la coefficient e phahameng ea katoloso ea mocheso, haholo-holo e le phaephe ea metsi a chesang ka har'a phaephe ea polasetiki, sebopeho se tenyetsehang, manonyeletso a katoloso kapa likobeho tse fapaneng le mehato e meng ea puseletso ea mocheso e mengata haholo. PE, PP le polyolefin e meng ke tsona tse ngata ka ho fetisisa. Haeba kaho le ho kenya li sa ele hloko sena ka ho lekaneng, 'me li nka mehato e tsamaellanang ea botekgeniki, ho bonolo ho etsahala ho sebopeho ka lebaka la manonyeletso a katoloso a hula bothata.
• Ka lebaka la ho tsamaisa mocheso ka tlase, ts'ebetso ea ho thibela mocheso ka phaephe ea polasetiki e ntle haholo 'me e ka fokotsa botenya ba lera la ho thibela mocheso kapa esita le ho se kenye letsoho ka ho feletseng. Papiso ea ho thibela mocheso ka phaepheng ea liphaephe tse fapaneng tsa polasetiki ha e amane feela le ho tsamaisa mocheso ka phaephe, empa hape e amana le botenya ba lebota la tsona la phaephe.
Tafole ea likateng
Ka dilemo tse ka bang 20 indastering ya disebediswa tsa extrusion tse bohlale, o bile le mesebetsi ya bohlokwa ho Jwell Machinery, ho kenyeletswa le Motsamaisi Kakaretso le Modulasetulo ya Potolohang. Ho tloha ka 2024, o laotse makala a mangata a ka tlase, a kganna katoloso ya kgwebo le ntlafatso ya diindasteri, ha a ntse a etella pele boqapi tlhahisong e bohlale le kgolo ya lefatshe.
